ASTM A519 4130 4140 1541 Stress Relieved Tube for Drilling

Grade AISI/SAE 4130 4140 grade (the chromium-molybdenum steel) is a versatile alloy with good atmospheric corrosion resistance and reasonable strength. It shows good overall combinations of strength, toughness, wear resistance and fatigue strength.

With our unique process, the AISI/SAE 4130 stress relieved tube (4130 +SR tube), 4140 stress relieved tube (4140 +SR tube) are highly elastic and possess high mechanical strength due to their low residual stress level, and they only suffer minimum plastic deformation during drilling.

● Refined microstructure (grain size≥9)

● High straightness (up 1/3000mm)

● Low residual hoop stresses (≤65Mpa) upon request for very demanding drilling conditon

● High dimensional accuracy, low eccentricity (≤5%)

● High-quality alloy steel sourcing from leading mills (BAO steel, TPCO steel, SHA steel, etc.) with verified chemical compositions

● Continuous geometric dimensioning check

● TIR straightness checking

● Mechanical testing (tensile, yield, hardness, etc.)

● 100% specific non-destructive testing according to ASTM E309

● Hoop stresses characterization

1. Q: Are you a trading company or manufacturer?

      A: We are a manufacturer and solution provider. Certified with ISO9001 & IATF16949, Dingxin has 20 years’ experience in the production of 4130 4140 stress relieved tubes for drill rod.

2. Q: What kind of information or parameters are indicated in MTC?

     A: Mill test certificates indicate chemical analysis, mechanical properties, steel grade, batch NO., heat NO., straightness, etc.

3. Q: What is your terms of payment?

      A: 30% advance payment, 70% T/T balance against B/L copy.

Why choose us?

• Our products ensure maximum efficiency when it comes to drilling.
• The products sold by our company are developing in the direction of specialization and have achieved a qualitative leap forward on the original basis.
• We are dedicated to providing our customers with exceptional service while delivering quality Tube for Drill Rods.
• We rely on technology to form cost advantage and lay a good profit foundation in the development and design stage of the ASTM A519 4130 4140 1541 Stress Relieved Tube for Drilling.
• We are a leading manufacturer of Tube for Drill Rods with many years of experience.
• Our destination is 'You come here with difficulty and we supply you with a smile to take away' for ASTM A519 4130 4140 1541 Stress Relieved Tube for Drilling.
• Our Tube for Drill Rods come in a wide variety of shapes and sizes to fit every need.
• Therefore, we will make unremitting efforts to abide by the tenet of perseverance and honesty.
• Our manufacturing process ensures the production of top-quality Tube for Drill Rods.
• Our company adheres to the principle of excellence, quality, responsibility for production and quality service.

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